It’s not all sunsets and s’mores. If the parks are going to last another century, we need to renew our effort to protect and preserve them. From garbage to global warming, here are the challenges—and solutions—ahead.

Sponsored: After looking at a map and seeing where you’re heading, it’s always amazing to see it appear up ahead of you in real life. Here’s our Editor-in-Chief hiking to two unnamed tarns near the headwaters of Lime Creek, about 3.5 miles west of Molas Pass on the Colorado Trail. Continued thanks to Mountain Hardwear for making the #ColoradoTrailFest come to life. #LiveBreatheHike #MountainHardwear Photo By Kennan Harvey